Original PR description

# How to reproduce
- Install Field Service
- Add a form on the Website
- Set the form's action to "Create a Task"
- Create a new internal/portal user
- Login as that user
- Submit the form with the required data and a phone number
- Inspect the created task as an admin

# Issue
partner_phone is empty

# Cause
If the form alters an existing user, we prevent any edition of that user : https://github.com/odoo/odoo/blob/615e54ecd2722433953931e1d51be15b069288c3/addons/website_project/controllers/main.py#L52-L59

# Proposed Solution
The PO asked for the following :
- if the task is submitted by a portal user -> show the number in partner_phone
- if the task is submitted by a public user -> show the number in the description

BUT, for security reason, we can't let a user edit any other user. So we limit the assignation to partner_phone only when the current user correspond to the edited partner

opw-6374641

Forward-Port-Of: odoo/odoo#285065

Original PR description

Problem:
Clicking inside a navigation link in website builder causes the caret to jump to the start of the link element.

Cause:
`LinkPlugin` unconditionally reset the selection to the start of non-editable link elements, ignoring whether the anchor node was inside an editable child element.

Solution:
Do not reset selection if the anchor node is inside a `contenteditable` element.

Steps to reproduce:
- Open website builder.
- Click inside a navbar link to place the caret. 
=> Caret no longer jumps to the start of the link.

opw-6535386

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Original PR description

Steps to reproduce:
1. Run a local SMTP server that responds with a server error. The server file is provided in the task [refuse_smtp.py](https://github.com/user-attachments/files/27166855/refuse_smtp.py)
2. Create an outgoing server for this SMTP server
3. Send an email

Issue:
The delivery failure reason displays Mail delivery failed via SMTP server 'None' instead of the configured server name.

Cause:
ir.mail_server.send_email() builds the failure message from the smtp_server argument, but in the common path the mail is sent via mail_server_id. In that case, the actual SMTP server is resolved in connect(), while smtp_server remains unset, so the error message shows None.

Solution:
Store the resolved server label on the SMTP connection when opening it, and reuse that value when formatting send failures.

opw-6139168

Forward-Port-Of: odoo/odoo#280750
Forward-Port-Of: odoo/odoo#261776

Original PR description

Opening "Insert in Spreadsheet" displayed an unwanted horizontal
scrollbar in the spreadsheet selector. On small viewports, it could also
produce a second scrollbar alongside the scrollable modal.

The selector reused the `o-spreadsheet-templates-dialog` class, whose
styles belong to `documents_spreadsheet`. This applied template-only
max-height and overflow rules to the selector and made
`spreadsheet_edition` rely on styles from a dependent module.

Give selector dialogs their own class and keep the template-specific
styles on the template dialog. Move the shared pager layout to
`spreadsheet_edition` under a dedicated class, and update both pager
consumers and the dashboard document selector.

Task: 6526781

Forward-Port-Of: odoo/enterprise#130114

Original PR description

This commit cleans up the test suite within the `account_accountant` module by removing redundant methods and old commented code.

no-task

Forward-Port-Of: odoo/enterprise#130644